97539660 has 48 divisors (see below), whose sum is σ = 303458400. Its totient is φ = 26010432.

The previous prime is 97539613. The next prime is 97539667. The reversal of 97539660 is 6693579.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (97539667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89775 + ... + 90854.

It is an arithmetic number, because the mean of its divisors is an integer number (6322050).

Almost surely, 2^97539660 is an apocalyptic number.

97539660 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97539660 is an abundant number, since it is smaller than the sum of its proper divisors (205918740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97539660 is a wasteful number, since it uses less digits than its factorization.

97539660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180647 (or 180639 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 97539660 is about 9876.2168870474. The cubic root of 97539660 is about 460.3206019579.

The spelling of 97539660 in words is "ninety-seven million, five hundred thirty-nine thousand, six hundred sixty".